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3 kyu
Sudoku Solver
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6 kyu
SQL Basics: Simple NULL handling
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6 kyu
SQL Basics: Create a FUNCTION (DATES)
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8 kyu
1. Find all active students
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5 kyu
Using LATERAL JOIN To Get Top N per Group
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5 kyu
SQL Tuning: Function Calls
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5 kyu
SQL Statistics: MIN, MEDIAN, MAX
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6 kyu
SQL Basics: Simple EXISTS
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4 kyu
Find the unknown digit
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7 kyu
Remove duplicate words
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6 kyu
Calculating Batting Average
5,603AdamRFSwayze
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6 kyu
SQL Basics: Top 10 customers by total payments amount
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6 kyu
SQL Basics: Simple JOIN and RANK
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4 kyu
Catching Car Mileage Numbers
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Sudoku Solution Validator
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